I have an application where the user selects the fields to include in the report so the question is How can i add fields at runtime to a crystal report ....more >>

Hallo folks, Just started to use regex a bit with c#. Want to do the following perhaps somebody have a tip. 1) want to remove trailing and leading whitespaces from the string. Tried this one here: string delim = " \t\r\n"; to = from.Trim (delim.ToCharArray ()); 2) remove all...more >>

Is it possible to override version information being serialized for strong named assemblies. The strictBinding and includeVersions elements of the config file do not seem to override the default behaviour which is to include version information.Thanks. ...more >>

hi all, what does the following mean ? class A { public string @return; } also, once an object is casted to class "A" how do i recast it to a "string" ? object o = invoke(.......); A a = (A)o; string s = (string)a; /// doesn't work . thanks, ...more >>

I host AxSHDocVw.AxWebBrowser in my C# application. It generally works ok. However, the AxSHDocVw.AxWebBrowser control sometime stucks and can not nevigate to other URLs. What is the problem? BTW, the network connection is ok. Thanks a lot, Pengyu...more >>

Please, Is there a way to annotate C# source code so that reverse engineering to UML Models ? Thanks. Paulo ...more >>

Hi I have this C# code --------------------------------- class BaseUnit; .... class ResizeBorder : Shape .... class Shape : BaseUnit { ResizeBorder a = new ResizeBorder(); } --------------------------------- (The classes offcourse has implementations) When i do this i get a sta...more >>

Hello! I am developing Windows application which after sending a request to a server will listen to response, a response will be infinite in length, but will not be continuous in time. What I have done is in a back thread I prepared infinite loop and there I am checking for new packages. It...more >>

How do I change the icon for an application? I tried setting the Icon property but it does not seem to work. Thanks, Rohit ...more >>

Once again Thanks William, Even though the code is in VB, i will try to figure it out... Is it possible to add a coloum to the database for images and then display them in the same datagrid? Thanks -Seelan ...more >>

Can someone suggest a way to reallocate an array without losing data? Jon Cosby ...more >>

Hi. I have already posted this question once, but this repost is to ensure no gurus missed it, who might be able to help me out here; I would like to know whether it is possible - without manually reading the raw image stream - to determine the colorspace used in an image as represented by a ...more >>

Today I have been suddenly warned by Norton Antivirus that MSIL.Gastropod had been found in Lutz Roeder ILReader.dll (old 1.0 version, dll of 57344 bytes). The virus was not found in any other .NET modules. does anyone have any reliable information on this Gastropod? is it serious? thanks in...more >>

Hi, Everytime I use a image in a Windows Form, Visual Studio.Net creates the image in the respective resx file. This can be very expensive in a project with about one hundred forms, where images of delete, insert and update (for example) appear several times. The only way I found to...more >>

Hello, I have read numerous post stating that the only way to unload an assembly (DLL in my case) is to create a separate AppDomain, load the assembly, then unload it by calling AppDomain.Unload. When trying to delete the DLL file I get an exception that access is denied. When trying to copy ...more >>

Why when I write this Regex r = new Regex(@"[\s]+") String [] tokenList = r.Split(line) If line which is a string, has spaces at the end or start, Regex leaves an empty string at the end and start of the tokenList array?...more >>

Hi, I'm creating an app. that shows a popup, but it only should if the user is realy working on the computer. It shouldn't popup if e.g. the screensaver is running. But how do I check the amount of user idle time? ...more >>

I have a 35000 line datagrid and updating one field in all 35000 rows takes an eternity. How come? Since I don't have the datasource available (it may be a table or view), in my example I do it like this: for (int i=0;i<34000;i++) //the first 2000 records took 2 mins. { dataGrid_auditA...more >>

Hi, I'm using an ActiveX control that has a read/write property named InsertionPoint (type = object). In the ActiveX documentation : Variant (three-element array of doubles); I can write to it : double[] insertPoint = new double[]{2, 5, 1}; myObj.InsertionPoint = insertPoint; => works fine...more >>

Howdy, Can someone tell me how im suppsoed to do this? Im new to this and im sure im doing something stupid. Im trying to update a table. I have the sql there, and i was able to update the table if i hardcoded everything, but i would really like to use parameters. Here is my code. tha...more >>

Regarding IOException I'm catching this error while querying for available serial ports using a third party component. I attempt to open then close the comport and if this error type is thrown then I don't list the port in a combo box. But I would like to discern between a comport not being ava...more >>

Hey Guys, How can I make the entries of a datagrid column to be a url link? (im using C#) Im just binding the data to the grid from sqlserver using datasource=SqlCommand.ExecuteReader() Please Help Thanks ...more >>

Hi I'm trying to automate VPN connection establishment and disconnection using the Cisco VPN client. That particular client has an interactive cli interface. I set my program up to launch the VPN client, redirect its standard input and output, and write to its standard input where a manual us...more >>

Hi, Can anyone provide an example of getting a hard disk/cdrom volume label in C#.net? Thanks in advance, Eddie ...more >>

Hello, I just want to know the key (licence number) of the operating system used by my computer. Then I use the WMI API in C#. I tried to used the classes : "Win32_OperatingSystem" "Win32_ComputerSystemProduct" For the "Win32_OperatingSystem" class I used the SerialNumber member. However...more >>

Hey, There's a client requirement to have my application send some files to another server on the same network through FTP. All I need to do is connect to the provided server and port, with the provided username and password, then upload some files in binary mode, then disconnect. Is the...more >>

H I'm a former VB programmer and I have a issue with Arrays in C If I can't tell the size in advance how can I solve the issue since C# does not suppor resizing arrays like VB do (i.e. Redim Preserve MyArray(x) Kjell...more >>

All - I need some help debugging a Null Reference Exception error I keep getting when callling a specific method from a COM object reference. I need help getting started where to look to see what may be causing this error. Other method calls to this COM object perform normally, but this sp...more >>

Hi. Imagine a scene where the user input the username and password in a "Login" form and when press the confirm button, another window is opened with the "Main" form. After that, the "Login" form is "closed" automatically. How can I do to close the "Login" form? If I use Login.Close() on the...more >>

Hi How can I force a ListBox to recalculating the height of these items? I have a ListBox with property DrawMode = OwnerDrawVariable and sometimes I want to draw items with more information (2 lines or more needed) Calling Update() method only redraw the list without calcula...more >>

Hi, I am trying to start a process from inside a .NET service. The process is a simple GUI app, the service will start up the GUI and then stop itself. The service starts the app, but no GUI appears. However, I can see the application running in the task manager. I made sure that CreateNoWindo...more >>

Hi, has anybody experience with how to update a software over eMail or WebServer? What would be the best way to do this? I'm fighting with this topic quiet a bit, but I really want to implement this - would really help me. Best Regards, Martin...more >>

Was my question too challenging for everyone? I thought I would get a much quicker response, complete with witty and (sometimes) condescending remarks Here's my question again, in case you missed it How do I reload a page Notice I did not ask "How do I *refresh* a page". I have no interest in ...more >>

I've written up a service in a C# using VS.NET to create the framework for me. However, I can't seem to get the service installed properly. When I run the InstallUtil on the service exe, it errors out, reporting the following shortly after trying to create the event log: An exception occurre...more >>

What is the C# equivalent of JTable? I need a UI that contains a table with variable rows, that I can add combo boxes and buttons to for columns. Thanks in advance! Derrick ...more >>

Hi I'm sorry for my english... I have a clas that contains a variable number of data stored in a dictionary. The key of the dictionary is a string that defines the name of the field. ( varA 12 varB "a string" varC 12/12/98 .....) I need to create a binding between a grid and a co...more >>

I am using some existing VB projects as templates to learn C#. One of them is a MDI app. There are status messages from the child forms that write to a statusbar panel on the main MDI form. ...more >>

Hello. I want to use System.Threading.Timer to control when my windows form is invalidated. I want it to update at 60 frames per second. But, if I set the Interval of my timer to anything less than 30ms, the event isn't triggered. That means I am stuck in the neighborhood of 30 frames per second...more >>

Is .NET 2.0 Framework going to take advantage of 64-bit computing? Intel and especially AMD's Opteron are 64-bit and they are really inexpensive. Look at the prices here... http://www.anandtech.com/guides/priceguide.html By the time .NET 2.0 comes out, maybe middle to late 2005 at the ear...more >>

Hi, I have a form with control placed on it. Control has the image painted on its graphics. Size of the contol is greater than size of the form and scroll bars appear in the form. I scroll the image to the end (i.e. bottom-right edge). After this, I open other form as modal dialog and after...more >>

Hi all, I have 2 form (frmLogin and frmMain) and inside of frmMain I've created this code: private int _tmpID; public int tmpID { get { return _tmpID } set { _tmpID = value; } } I created an instance of that form in frmLogin Eg: Form frmTemp = new frmMain(); but I can't find th...more >>

Hello can u please tell me what security does SSL holds Thanks ...more >>

How do you go about reading the extended properties of a file. (jpg) ...more >>

Hello, I wrote a system service, whis is located in assembly called "s1.exe". But i like to install this service twice. Problem starts, when service starts....a service code loks like this: public class TestService : ServiceBase { public TestService(string serviceName) { this.Se...more >>

Hi, I would like to know if there exists something like the Optional argument in VB for C# ??? thanx... ...more >>

Given an enum : public enum FlavourCategory {None = -1, Personal = -3, Local = -2, Predefined = 1}; How can I convert a string eg. "-2" into a FlavourCategory ? I dont want to write a switch statement. ...more >>

Hi, how can I minimize an application to the tray? Snippets welcome. Martin...more >>

Is there a way in either class view or object browser to display the children of a given class? Seems like it's easy to go up the inheritance tree but it's not obvious how one navigates down. - James Moore banshee@banshee.com ...more >>

Hello, my problem is that i use a c# application which create an excel workbook and i want to rotate data contained in a specific cell. Thanks for your help, Thomas BUJAUD PS: sorry for my bad english PS2: i use the microsoft.interop.excel library ...more >>

Howdy, I'm new to this .net stuff and really have little to no training. Im trying to create a new page for a web form, so i have been pretty much jsut coping code. I having some issue with some textboxes not updating when i a hit save. for example I have this code in my aspx.cs file: ...more >>

Does someone have RegularExpression code (C# WebForm) for server-side validation of Date (mm/dd/yyyy) ... including leap year?...more >>

How do I code in C# to have a button click open another Form within the same application, then I want the form that it opened to get filled out and on submission of that form to close that form and go back to the original calling form. ...more >>

Hello Everybody, I am new to C# and .NET. I used to write ActiveX using MFC. Now i need to write componets in C#. My qustions is, what is the equivelent to PropertyPage in componets? For my componets i need to give UI to set property values.... How can i do it? Thanks a lot, Bob. ...more >>

I'm new to C# deployment project way of doing things and have run into a problem with a deployment project that has me stumped. I've put together a deployment of a project which works just fine for new installations but fails if the project has already been deployed. What I'd like for it to do i...more >>

Hi, We have a standard windows app writeen in C# that uses an ActiveX dll to send us events. This works fine as a Windows app, but as soon as we compile as a service, no more events. I have been told that there is no message pump provided to the service, and therefore the events from the dl...more >>

I need a console application to send me an e-mail....in the past I have use SQL Server's mail messaging to send my e-mails for console applications, but often the SQL Server mail message will not get sent because the SQL Server times out....In my web pages I use the Web MailMessage object,...more >>

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I have the following number: 64521234567890 and need to apply some sort of simple encryption. Does c# have any classes for doing this. I cant use 3DES or anything as complex as. The size of the string cannot increase either (no more than 14 chars) and must be numeric only. Regards, ...more >>

Hi everyone, I have an ArrayList whose members are classes. These classes are derived from a same base class. The base class has a floating point array and a string. How do I access each element in the floating point array in a member of the ArrayList? Any help would be greatly appreciated. Hao...more >>

Hi :idea: , I am looking for some input on “Dialup Connectivity” in .Net My scenario being I will have a config file containing the parameters required for modem connection like the phone number, data bit, baud rate, etc. Here I have instantiate the connection and send a string to the ser...more >>

Hello and thanks for any help I've noticed that my main application window has a bad Flash/Flicker sometimes when I close a modal dialog box. Sometimes it also loses focus, and gets placed behind another window that was not originally on top. I perform the dispose inside of the dialog, for instance...more >>

H If I us Process.Start("DTSRun ...") on a computer that has SQL server installed, it can't fin DTSRun, claiming 'file not found'. Despite this, Shell("DTSRun...") from VB.NET works fine It also works to run DTSRun from the command line without typing in the directory as c:\program files\micro...more >>

I am interested in finding out if it is possible with C# to manipulate IE to go to certain websites and act as a user I basically have a process I wish to automate but this process requires the users to input information which we already have, which I feel is inefficient, how can I code Internet ex...more >>

is it possible to write a web based program that uses direct3d?? and if the answer is yes, then do u know where to find an example or tutorial?? ...more >>

How to check Maximize button click event of a Form or how to check whether present size of form is maximum available size ...more >>

I have an irritating problem with VS.NET2003, C#. I wrote some code that would build my application menu from an XML resource file. Purely to make it easy for me to edit, so I've added this file as an embedded resource. My irritation, is that when I update the resource file and nothing else. VS...more >>

We have built a huge application that is normally fronted by a web front-end. The system was built in C#.Net and is fully COM+ The section I am building, however, reads from MSMQ and depending on the message, fires off an Assembly that also utilises the Business logic in the already created projec...more >>

I'm trying to create a simple one-form application that reads information from a database in a thread. Everything runs fine, statements executes ok, but I want to add some of the returning information into listBoxes in my form. Following Microsoft's sample, I created a couple of static metho...more >>

Hi,I have 2 classes that are written in pure C++. They use several iostream functions and file operations. They are coded under Visual Studio 6.0 I want to make a user interface for these 2 classes using Visual C#. But I cannot use these 2 classes from .NET environment. How can I do that ? I t...more >>